Mercurial > libervia-backend
annotate src/plugins/plugin_sec_otr.py @ 2140:f79935f41125
plugin XEP-0184: check if entity is allowed to see our presence before returning receipt
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Mon, 06 Feb 2017 20:47:36 +0100 |
| parents | 6e509ee853a8 |
| children | 1d3f73e065e1 |
| rev | line source |
|---|---|
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1 #!/usr/bin/env python2 |
| 1055 | 2 # -*- coding: utf-8 -*- |
| 3 | |
| 4 # SAT plugin for OTR encryption | |
| 1766 | 5 # Copyright (C) 2009-2016 Jérôme Poisson (goffi@goffi.org) |
| 1055 | 6 |
| 7 # This program is free software: you can redistribute it and/or modify | |
| 8 # it under the terms of the GNU Affero General Public License as published by | |
| 9 # the Free Software Foundation, either version 3 of the License, or | |
| 10 # (at your option) any later version. | |
| 11 | |
| 12 # This program is distributed in the hope that it will be useful, | |
| 13 # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 # GNU Affero General Public License for more details. | |
| 16 | |
| 17 # You should have received a copy of the GNU Affero General Public License | |
| 18 # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 | |
| 20 # XXX: thanks to Darrik L Mazey for his documentation (https://blog.darmasoft.net/2013/06/30/using-pure-python-otr.html) | |
| 21 # this implentation is based on it | |
| 22 | |
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23 from sat.core.i18n import _, D_ |
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24 from sat.core.constants import Const as C |
| 1055 | 25 from sat.core.log import getLogger |
| 26 from sat.core import exceptions | |
| 27 log = getLogger(__name__) | |
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28 from sat.tools import xml_tools |
| 1055 | 29 from twisted.words.protocols.jabber import jid |
| 30 from twisted.python import failure | |
| 1095 | 31 from twisted.internet import defer |
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32 from sat.memory import persistent |
| 1055 | 33 import potr |
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34 import copy |
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35 import time |
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36 import uuid |
| 1095 | 37 |
| 2125 | 38 |
| 1055 | 39 PLUGIN_INFO = { |
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40 "name": u"OTR", |
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41 "import_name": u"OTR", |
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42 "type": u"SEC", |
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43 "protocols": [u"XEP-0364"], |
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44 "dependencies": [u"XEP-0280", u"XEP-0334"], |
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45 "main": u"OTR", |
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46 "handler": u"no", |
| 2125 | 47 "description": _(u"""Implementation of OTR""") |
| 1055 | 48 } |
| 49 | |
| 2128 | 50 NS_OTR = "otr_plugin" |
| 51 PRIVATE_KEY = "PRIVATE KEY" | |
| 52 OTR_MENU = D_(u'OTR') | |
| 53 AUTH_TXT = D_(u"To authenticate your correspondent, you need to give your below fingerprint *BY AN EXTERNAL CANAL* (i.e. not in this chat), and check that the one he gives you is the same as below. If there is a mismatch, there can be a spy between you!") | |
| 54 DROP_TXT = D_(u"You private key is used to encrypt messages for your correspondent, nobody except you must know it, if you are in doubt, you should drop it!\n\nAre you sure you want to drop your private key?") | |
| 55 # NO_LOG_AND = D_(u"/!\\Your history is not logged anymore, and") # FIXME: not used at the moment | |
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56 NO_ADV_FEATURES = D_(u"Some of advanced features are disabled !") |
| 2128 | 57 |
| 58 DEFAULT_POLICY_FLAGS = { | |
| 59 'ALLOW_V1':False, | |
| 60 'ALLOW_V2':True, | |
| 61 'REQUIRE_ENCRYPTION':True, | |
| 62 } | |
| 63 | |
| 64 OTR_STATE_TRUSTED = 'trusted' | |
| 65 OTR_STATE_UNTRUSTED = 'untrusted' | |
| 66 OTR_STATE_UNENCRYPTED = 'unencrypted' | |
| 67 OTR_STATE_ENCRYPTED = 'encrypted' | |
| 68 | |
| 1055 | 69 |
| 70 class Context(potr.context.Context): | |
| 1095 | 71 def __init__(self, host, account, other_jid): |
| 72 super(Context, self).__init__(account, other_jid) | |
| 1055 | 73 self.host = host |
| 74 | |
| 75 def getPolicy(self, key): | |
| 76 if key in DEFAULT_POLICY_FLAGS: | |
| 77 return DEFAULT_POLICY_FLAGS[key] | |
| 78 else: | |
| 79 return False | |
| 80 | |
| 1095 | 81 def inject(self, msg_str, appdata=None): |
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82 """Inject encrypted data in the stream |
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83 |
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84 if appdata is not None, we are sending a message in sendMessageFinishTrigger |
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85 stanza will be injected directly if appdata is None, else we just update the element |
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86 and follow normal workflow |
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87 @param msg_str(str): encrypted message body |
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88 @param appdata(None, dict): None for signal message, |
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89 message data when an encrypted message is going to be sent |
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90 """ |
| 1095 | 91 assert isinstance(self.peer, jid.JID) |
| 92 msg = msg_str.decode('utf-8') | |
| 93 client = self.user.client | |
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94 log.debug(u'injecting encrypted message to {to}'.format(to=self.peer)) |
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95 if appdata is None: |
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96 mess_data = { |
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97 'from': client.jid, |
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98 'to': self.peer, |
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99 'uid': unicode(uuid.uuid4()), |
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100 'message': {'': msg}, |
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101 'subject': {}, |
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102 'type': 'chat', |
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103 'extra': {}, |
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104 'timestamp': time.time(), |
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105 } |
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106 self.host.generateMessageXML(mess_data) |
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107 client.send(mess_data['xml']) |
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108 else: |
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109 message_elt = appdata[u'xml'] |
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110 assert message_elt.name == u'message' |
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111 message_elt.addElement("body", content=msg) |
| 1055 | 112 |
| 113 def setState(self, state): | |
| 2128 | 114 client = self.user.client |
| 1095 | 115 old_state = self.state |
| 1055 | 116 super(Context, self).setState(state) |
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117 log.debug(u"setState: %s (old_state=%s)" % (state, old_state)) |
| 1095 | 118 |
| 119 if state == potr.context.STATE_PLAINTEXT: | |
| 120 feedback = _(u"/!\\ conversation with %(other_jid)s is now UNENCRYPTED") % {'other_jid': self.peer.full()} | |
| 2128 | 121 self.host.bridge.otrState(OTR_STATE_UNENCRYPTED, self.peer.full(), client.profile) |
| 1095 | 122 elif state == potr.context.STATE_ENCRYPTED: |
| 123 try: | |
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124 trusted = self.getCurrentTrust() |
| 1095 | 125 except TypeError: |
| 126 trusted = False | |
| 127 trusted_str = _(u"trusted") if trusted else _(u"untrusted") | |
| 128 | |
| 129 if old_state == potr.context.STATE_ENCRYPTED: | |
| 2125 | 130 feedback = D_(u"{trusted} OTR conversation with {other_jid} REFRESHED").format( |
| 131 trusted = trusted_str, | |
| 132 other_jid = self.peer.full()) | |
| 1095 | 133 else: |
| 2128 | 134 feedback = D_(u"{trusted} encrypted OTR conversation started with {other_jid}\n{extra_info}").format( |
| 2125 | 135 trusted = trusted_str, |
| 136 other_jid = self.peer.full(), | |
| 2128 | 137 extra_info = NO_ADV_FEATURES) |
| 138 self.host.bridge.otrState(OTR_STATE_ENCRYPTED, self.peer.full(), client.profile) | |
| 1095 | 139 elif state == potr.context.STATE_FINISHED: |
| 2125 | 140 feedback = D_(u"OTR conversation with {other_jid} is FINISHED").format(other_jid = self.peer.full()) |
| 2128 | 141 self.host.bridge.otrState(OTR_STATE_UNENCRYPTED, self.peer.full(), client.profile) |
| 1095 | 142 else: |
| 2125 | 143 log.error(D_(u"Unknown OTR state")) |
| 1095 | 144 return |
| 145 | |
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146 client.feedback(self.peer, feedback) |
| 1055 | 147 |
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148 def disconnect(self): |
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149 """Disconnect the session.""" |
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150 if self.state != potr.context.STATE_PLAINTEXT: |
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151 super(Context, self).disconnect() |
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152 |
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153 def finish(self): |
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154 """Finish the session - avoid to send any message but the user still has to end the session himself.""" |
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155 if self.state == potr.context.STATE_ENCRYPTED: |
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156 self.processTLVs([potr.proto.DisconnectTLV()]) |
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157 |
| 1055 | 158 |
| 159 class Account(potr.context.Account): | |
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160 # TODO: manage trusted keys: if a fingerprint is not used anymore, we have no way to remove it from database yet (same thing for a correspondent jid) |
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161 # TODO: manage explicit message encryption |
| 1055 | 162 |
| 1095 | 163 def __init__(self, host, client): |
| 164 log.debug(u"new account: %s" % client.jid) | |
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165 if not client.jid.resource: |
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166 log.warning("Account created without resource") |
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167 super(Account, self).__init__(unicode(client.jid), "xmpp", 1024) |
| 1095 | 168 self.host = host |
| 169 self.client = client | |
| 1055 | 170 |
| 171 def loadPrivkey(self): | |
| 1095 | 172 log.debug(u"loadPrivkey") |
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173 return self.privkey |
| 1055 | 174 |
| 175 def savePrivkey(self): | |
| 1095 | 176 log.debug(u"savePrivkey") |
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177 if self.privkey is None: |
| 2125 | 178 raise exceptions.InternalError(_(u"Save is called but privkey is None !")) |
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179 priv_key = self.privkey.serializePrivateKey().encode('hex') |
| 1095 | 180 d = self.host.memory.encryptValue(priv_key, self.client.profile) |
| 181 def save_encrypted_key(encrypted_priv_key): | |
| 2128 | 182 self.client._otr_data[PRIVATE_KEY] = encrypted_priv_key |
| 1095 | 183 d.addCallback(save_encrypted_key) |
| 1055 | 184 |
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185 def loadTrusts(self): |
| 2128 | 186 trust_data = self.client._otr_data.get('trust', {}) |
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187 for jid_, jid_data in trust_data.iteritems(): |
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188 for fingerprint, trust_level in jid_data.iteritems(): |
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189 log.debug(u'setting trust for {jid}: [{fingerprint}] = "{trust_level}"'.format(jid=jid_, fingerprint=fingerprint, trust_level=trust_level)) |
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190 self.trusts.setdefault(jid.JID(jid_), {})[fingerprint] = trust_level |
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191 |
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192 def saveTrusts(self): |
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193 log.debug(u"saving trusts for {profile}".format(profile=self.client.profile)) |
| 2128 | 194 log.debug(u"trusts = {}".format(self.client._otr_data['trust'])) |
| 195 self.client._otr_data.force('trust') | |
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196 |
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197 def setTrust(self, other_jid, fingerprint, trustLevel): |
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198 try: |
| 2128 | 199 trust_data = self.client._otr_data['trust'] |
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200 except KeyError: |
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201 trust_data = {} |
| 2128 | 202 self.client._otr_data['trust'] = trust_data |
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203 jid_data = trust_data.setdefault(other_jid.full(), {}) |
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204 jid_data[fingerprint] = trustLevel |
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205 super(Account, self).setTrust(other_jid, fingerprint, trustLevel) |
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206 |
| 1055 | 207 |
| 208 class ContextManager(object): | |
| 209 | |
| 210 def __init__(self, host, client): | |
| 211 self.host = host | |
| 1095 | 212 self.account = Account(host, client) |
| 1055 | 213 self.contexts = {} |
| 214 | |
| 1095 | 215 def startContext(self, other_jid): |
| 216 assert isinstance(other_jid, jid.JID) | |
| 217 context = self.contexts.setdefault(other_jid, Context(self.host, self.account, other_jid)) | |
| 218 return context | |
| 1055 | 219 |
| 220 def getContextForUser(self, other): | |
| 1095 | 221 log.debug(u"getContextForUser [%s]" % other) |
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222 if not other.resource: |
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223 log.warning(u"getContextForUser called with a bare jid: %s" % other.full()) |
| 1055 | 224 return self.startContext(other) |
| 225 | |
| 226 | |
| 227 class OTR(object): | |
| 228 | |
| 229 def __init__(self, host): | |
| 1095 | 230 log.info(_(u"OTR plugin initialization")) |
| 1055 | 231 self.host = host |
| 232 self.context_managers = {} | |
| 2128 | 233 self.skipped_profiles = set() # FIXME: OTR should not be skipped per profile, this need to be refactored |
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234 self._p_hints = host.plugins[u'XEP-0334'] |
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235 self._p_carbons = host.plugins[u'XEP-0280'] |
| 1055 | 236 host.trigger.add("MessageReceived", self.MessageReceivedTrigger, priority=100000) |
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237 host.trigger.add("messageSend", self.messageSendTrigger, priority=100000) |
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238 host.trigger.add("sendMessageFinish", self._sendMessageFinishTrigger) |
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239 host.bridge.addMethod("skipOTR", ".plugin", in_sign='s', out_sign='', method=self._skipOTR) # FIXME: must be removed, must be done on per-message basis |
| 2128 | 240 host.bridge.addSignal("otrState", ".plugin", signature='sss') # args: state, destinee_jid, profile |
| 2125 | 241 host.importMenu((OTR_MENU, D_(u"Start/Refresh")), self._otrStartRefresh, security_limit=0, help_string=D_(u"Start or refresh an OTR session"), type_=C.MENU_SINGLE) |
| 242 host.importMenu((OTR_MENU, D_(u"End session")), self._otrSessionEnd, security_limit=0, help_string=D_(u"Finish an OTR session"), type_=C.MENU_SINGLE) | |
| 243 host.importMenu((OTR_MENU, D_(u"Authenticate")), self._otrAuthenticate, security_limit=0, help_string=D_(u"Authenticate user/see your fingerprint"), type_=C.MENU_SINGLE) | |
| 244 host.importMenu((OTR_MENU, D_(u"Drop private key")), self._dropPrivKey, security_limit=0, type_=C.MENU_SINGLE) | |
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245 host.trigger.add("presenceReceived", self._presenceReceivedTrigger) |
| 1055 | 246 |
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247 def _skipOTR(self, profile): |
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248 """Tell the backend to not handle OTR for this profile. |
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249 |
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250 @param profile (str): %(doc_profile)s |
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251 """ |
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252 # FIXME: should not be done per profile but per message, using extra data |
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253 # for message received, profile wide hook may be need, but client |
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254 # should be used anyway instead of a class attribute |
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255 self.skipped_profiles.add(profile) |
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256 |
| 1095 | 257 @defer.inlineCallbacks |
| 1055 | 258 def profileConnected(self, profile): |
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259 if profile in self.skipped_profiles: |
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260 return |
| 1055 | 261 client = self.host.getClient(profile) |
| 2128 | 262 ctxMng = client._otr_context_manager = ContextManager(self.host, client) |
| 263 client._otr_data = persistent.PersistentBinaryDict(NS_OTR, profile) | |
| 264 yield client._otr_data.load() | |
| 265 encrypted_priv_key = client._otr_data.get(PRIVATE_KEY, None) | |
| 1095 | 266 if encrypted_priv_key is not None: |
| 267 priv_key = yield self.host.memory.decryptValue(encrypted_priv_key, profile) | |
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268 ctxMng.account.privkey = potr.crypt.PK.parsePrivateKey(priv_key.decode('hex'))[0] |
| 1095 | 269 else: |
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270 ctxMng.account.privkey = None |
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271 ctxMng.account.loadTrusts() |
| 1055 | 272 |
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273 def profileDisconnected(self, profile): |
| 2128 | 274 if profile in self.skipped_profiles: |
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275 self.skipped_profiles.remove(profile) |
| 2128 | 276 return |
| 277 client = self.host.getClient(profile) | |
| 278 for context in client._otr_context_manager.contexts.values(): | |
| 279 context.disconnect() | |
| 280 del client._otr_context_manager | |
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281 |
| 2125 | 282 def _otrStartRefresh(self, menu_data, profile): |
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283 """Start or refresh an OTR session |
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284 |
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285 @param menu_data: %(menu_data)s |
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286 @param profile: %(doc_profile)s |
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287 """ |
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288 client = self.host.getClient(profile) |
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289 try: |
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290 to_jid = jid.JID(menu_data['jid']) |
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291 except KeyError: |
| 2125 | 292 log.error(_(u"jid key is not present !")) |
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293 return defer.fail(exceptions.DataError) |
| 2125 | 294 self.startRefresh(client, to_jid) |
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295 return {} |
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296 |
| 2125 | 297 def startRefresh(self, client, to_jid): |
| 298 """Start or refresh an OTR session | |
| 299 | |
| 300 @param to_jid(jid.JID): jid to start encrypted session with | |
| 301 """ | |
| 302 if not to_jid.resource: | |
| 303 to_jid.resource = self.host.memory.getMainResource(client, to_jid) # FIXME: temporary and unsecure, must be changed when frontends are refactored | |
| 2128 | 304 otrctx = client._otr_context_manager.getContextForUser(to_jid) |
| 2125 | 305 query = otrctx.sendMessage(0, '?OTRv?') |
| 306 otrctx.inject(query) | |
| 307 | |
| 308 def _otrSessionEnd(self, menu_data, profile): | |
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309 """End an OTR session |
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310 |
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311 @param menu_data: %(menu_data)s |
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312 @param profile: %(doc_profile)s |
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313 """ |
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314 client = self.host.getClient(profile) |
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315 try: |
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316 to_jid = jid.JID(menu_data['jid']) |
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317 except KeyError: |
| 2125 | 318 log.error(_(u"jid key is not present !")) |
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319 return defer.fail(exceptions.DataError) |
| 2125 | 320 self.endSession(client, to_jid) |
| 321 return {} | |
| 322 | |
| 323 def endSession(self, client, to_jid): | |
| 324 """End an OTR session""" | |
| 325 if not to_jid.resource: | |
| 326 to_jid.resource = self.host.memory.getMainResource(client, to_jid) # FIXME: temporary and unsecure, must be changed when frontends are refactored | |
| 2128 | 327 otrctx = client._otr_context_manager.getContextForUser(to_jid) |
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328 otrctx.disconnect() |
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329 return {} |
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330 |
| 2125 | 331 def _otrAuthenticate(self, menu_data, profile): |
| 332 """End an OTR session | |
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333 |
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334 @param menu_data: %(menu_data)s |
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335 @param profile: %(doc_profile)s |
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336 """ |
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337 client = self.host.getClient(profile) |
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338 try: |
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339 to_jid = jid.JID(menu_data['jid']) |
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340 except KeyError: |
| 2125 | 341 log.error(_(u"jid key is not present !")) |
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342 return defer.fail(exceptions.DataError) |
| 2125 | 343 return self.authenticate(client, to_jid) |
| 344 | |
| 345 def authenticate(self, client, to_jid): | |
| 346 """Authenticate other user and see our own fingerprint""" | |
| 347 if not to_jid.resource: | |
| 348 to_jid.resource = self.host.memory.getMainResource(client, to_jid) # FIXME: temporary and unsecure, must be changed when frontends are refactored | |
| 2128 | 349 ctxMng = client._otr_context_manager |
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350 otrctx = ctxMng.getContextForUser(to_jid) |
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351 priv_key = ctxMng.account.privkey |
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352 |
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353 if priv_key is None: |
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354 # we have no private key yet |
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plugin OTR: authentication management + fixed a bug in setState (due to a wrong docstring in potr.context.getCurrentTrust)
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355 dialog = xml_tools.XMLUI(C.XMLUI_DIALOG, |
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356 dialog_opt = {C.XMLUI_DATA_TYPE: C.XMLUI_DIALOG_MESSAGE, |
| 2125 | 357 C.XMLUI_DATA_MESS: _(u"You have no private key yet, start an OTR conversation to have one"), |
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358 C.XMLUI_DATA_LVL: C.XMLUI_DATA_LVL_WARNING |
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359 }, |
| 2125 | 360 title = _(u"No private key"), |
|
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361 ) |
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362 return {'xmlui': dialog.toXml()} |
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plugin OTR: authentication management + fixed a bug in setState (due to a wrong docstring in potr.context.getCurrentTrust)
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363 |
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364 other_fingerprint = otrctx.getCurrentKey() |
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plugin OTR: authentication management + fixed a bug in setState (due to a wrong docstring in potr.context.getCurrentTrust)
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365 |
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7fcafc3206b1
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366 if other_fingerprint is None: |
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plugin OTR: authentication management + fixed a bug in setState (due to a wrong docstring in potr.context.getCurrentTrust)
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367 # we have a private key, but not the fingerprint of our correspondent |
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plugin OTR: authentication management + fixed a bug in setState (due to a wrong docstring in potr.context.getCurrentTrust)
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368 dialog = xml_tools.XMLUI(C.XMLUI_DIALOG, |
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369 dialog_opt = {C.XMLUI_DATA_TYPE: C.XMLUI_DIALOG_MESSAGE, |
| 2125 | 370 C.XMLUI_DATA_MESS: _(u"Your fingerprint is:\n{fingerprint}\n\nStart an OTR conversation to have your correspondent one.").format(fingerprint=priv_key), |
|
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plugin OTR: authentication management + fixed a bug in setState (due to a wrong docstring in potr.context.getCurrentTrust)
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371 C.XMLUI_DATA_LVL: C.XMLUI_DATA_LVL_INFO |
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372 }, |
| 2125 | 373 title = _(u"Fingerprint"), |
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374 ) |
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plugin OTR: authentication management + fixed a bug in setState (due to a wrong docstring in potr.context.getCurrentTrust)
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375 return {'xmlui': dialog.toXml()} |
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plugin OTR: authentication management + fixed a bug in setState (due to a wrong docstring in potr.context.getCurrentTrust)
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376 |
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plugin OTR: authentication management + fixed a bug in setState (due to a wrong docstring in potr.context.getCurrentTrust)
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377 def setTrust(raw_data, profile): |
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plugin OTR: authentication management + fixed a bug in setState (due to a wrong docstring in potr.context.getCurrentTrust)
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378 # This method is called when authentication form is submited |
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379 data = xml_tools.XMLUIResult2DataFormResult(raw_data) |
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plugin OTR: authentication management + fixed a bug in setState (due to a wrong docstring in potr.context.getCurrentTrust)
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380 if data['match'] == 'yes': |
| 2128 | 381 otrctx.setCurrentTrust(OTR_STATE_TRUSTED) |
| 2125 | 382 note_msg = _(u"Your correspondent {correspondent} is now TRUSTED") |
| 2128 | 383 self.host.bridge.otrState(OTR_STATE_TRUSTED, to_jid.full(), client.profile) |
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384 else: |
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plugin OTR: authentication management + fixed a bug in setState (due to a wrong docstring in potr.context.getCurrentTrust)
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|
385 otrctx.setCurrentTrust('') |
| 2125 | 386 note_msg = _(u"Your correspondent {correspondent} is now UNTRUSTED") |
| 2128 | 387 self.host.bridge.otrState(OTR_STATE_UNTRUSTED, to_jid.full(), client.profile) |
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388 note = xml_tools.XMLUI(C.XMLUI_DIALOG, dialog_opt = { |
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389 C.XMLUI_DATA_TYPE: C.XMLUI_DIALOG_NOTE, |
|
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390 C.XMLUI_DATA_MESS: note_msg.format(correspondent=otrctx.peer)} |
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391 ) |
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392 return {'xmlui': note.toXml()} |
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393 |
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394 submit_id = self.host.registerCallback(setTrust, with_data=True, one_shot=True) |
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plugin OTR: authentication management + fixed a bug in setState (due to a wrong docstring in potr.context.getCurrentTrust)
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395 trusted = bool(otrctx.getCurrentTrust()) |
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plugin OTR: authentication management + fixed a bug in setState (due to a wrong docstring in potr.context.getCurrentTrust)
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396 |
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397 xmlui = xml_tools.XMLUI(C.XMLUI_FORM, title=_('Authentication (%s)') % to_jid.full(), submit_id=submit_id) |
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plugin OTR: authentication management + fixed a bug in setState (due to a wrong docstring in potr.context.getCurrentTrust)
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398 xmlui.addText(_(AUTH_TXT)) |
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399 xmlui.addDivider() |
| 2125 | 400 xmlui.addText(D_(u"Your own fingerprint is:\n{fingerprint}").format(fingerprint=priv_key)) |
| 401 xmlui.addText(D_(u"Your correspondent fingerprint should be:\n{fingerprint}").format(fingerprint=other_fingerprint)) | |
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plugin OTR: authentication management + fixed a bug in setState (due to a wrong docstring in potr.context.getCurrentTrust)
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402 xmlui.addDivider('blank') |
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403 xmlui.changeContainer('pairs') |
| 2125 | 404 xmlui.addLabel(D_(u'Is your correspondent fingerprint the same as here ?')) |
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405 xmlui.addList("match", [('yes', _('yes')),('no', _('no'))], ['yes' if trusted else 'no']) |
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plugin OTR: authentication management + fixed a bug in setState (due to a wrong docstring in potr.context.getCurrentTrust)
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406 return {'xmlui': xmlui.toXml()} |
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plugin OTR: authentication management + fixed a bug in setState (due to a wrong docstring in potr.context.getCurrentTrust)
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407 |
|
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408 def _dropPrivKey(self, menu_data, profile): |
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409 """Drop our private Key |
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410 |
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411 @param menu_data: %(menu_data)s |
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412 @param profile: %(doc_profile)s |
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413 """ |
|
1970
200cd707a46d
plugin XEP-0045, quick_frontend + primitivus (chat): cleaning of XEP-0045 (first pass):
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diff
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|
414 client = self.host.getClient(profile) |
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|
415 try: |
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416 to_jid = jid.JID(menu_data['jid']) |
|
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417 if not to_jid.resource: |
|
1970
200cd707a46d
plugin XEP-0045, quick_frontend + primitivus (chat): cleaning of XEP-0045 (first pass):
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diff
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|
418 to_jid.resource = self.host.memory.getMainResource(client, to_jid) # FIXME: temporary and unsecure, must be changed when frontends are refactored |
|
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419 except KeyError: |
| 2125 | 420 log.error(_(u"jid key is not present !")) |
|
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421 return defer.fail(exceptions.DataError) |
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|
422 |
| 2128 | 423 ctxMng = client._otr_context_manager |
|
1146
1ac5ea74dbdf
plugin OTR: remove unnecessary attribute SatXMPPClient.otr_priv_key
souliane <souliane@mailoo.org>
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1144
diff
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|
424 if ctxMng.account.privkey is None: |
| 2125 | 425 return {'xmlui': xml_tools.note(_(u"You don't have a private key yet !")).toXml()} |
|
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|
426 |
|
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|
427 def dropKey(data, profile): |
|
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|
428 if C.bool(data['answer']): |
|
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|
429 # we end all sessions |
|
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changeset
|
430 for context in ctxMng.contexts.values(): |
|
1169
a3354063dfb6
plugin OTR: disconnect the active OTR sessions and delete the context on profile disconnection
souliane <souliane@mailoo.org>
parents:
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diff
changeset
|
431 context.disconnect() |
|
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|
432 ctxMng.account.privkey = None |
|
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433 ctxMng.account.getPrivkey() # as account.privkey is None, getPrivkey will generate a new key, and save it |
| 2128 | 434 return {'xmlui': xml_tools.note(D_(u"Your private key has been dropped")).toXml()} |
|
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|
435 return {} |
|
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|
436 |
|
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|
437 submit_id = self.host.registerCallback(dropKey, with_data=True, one_shot=True) |
|
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|
438 |
| 2128 | 439 confirm = xml_tools.XMLUI(C.XMLUI_DIALOG, title=_(u'Confirm private key drop'), dialog_opt = {'type': C.XMLUI_DIALOG_CONFIRM, 'message': _(DROP_TXT)}, submit_id = submit_id) |
|
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|
440 return {'xmlui': confirm.toXml()} |
|
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|
441 |
| 2128 | 442 def _receivedTreatment(self, data, client): |
|
1963
a2bc5089c2eb
backend, frontends: message refactoring (huge commit):
Goffi <goffi@goffi.org>
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1955
diff
changeset
|
443 from_jid = data['from'] |
| 1095 | 444 log.debug(u"_receivedTreatment [from_jid = %s]" % from_jid) |
| 2128 | 445 otrctx = client._otr_context_manager.getContextForUser(from_jid) |
| 1055 | 446 |
| 447 try: | |
|
1955
633b5c21aefd
backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents:
1934
diff
changeset
|
448 message = data['message'].itervalues().next() # FIXME: Q&D fix for message refactoring, message is now a dict |
|
633b5c21aefd
backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents:
1934
diff
changeset
|
449 res = otrctx.receiveMessage(message.encode('utf-8')) |
| 1055 | 450 except potr.context.UnencryptedMessage: |
| 2128 | 451 encrypted = False |
| 1095 | 452 if otrctx.state == potr.context.STATE_ENCRYPTED: |
| 2128 | 453 log.warning(u"Received unencrypted message in an encrypted context (from {jid})".format( |
| 454 jid = from_jid.full())) | |
| 2125 | 455 |
| 456 feedback=D_(u"WARNING: received unencrypted data in a supposedly encrypted context"), | |
|
2138
6e509ee853a8
plugin OTR, core; use of new sendMessage + OTR mini refactoring:
Goffi <goffi@goffi.org>
parents:
2132
diff
changeset
|
457 client.feedback(from_jid.full(), feedback) |
|
1955
633b5c21aefd
backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents:
1934
diff
changeset
|
458 except StopIteration: |
|
633b5c21aefd
backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents:
1934
diff
changeset
|
459 return data |
| 2128 | 460 else: |
| 461 encrypted = True | |
| 1055 | 462 |
| 2128 | 463 if encrypted: |
| 1055 | 464 if res[0] != None: |
| 465 # decrypted messages handling. | |
| 466 # receiveMessage() will return a tuple, the first part of which will be the decrypted message | |
|
1955
633b5c21aefd
backend, frontend: messages refactoring (huge commit, not finished):
Goffi <goffi@goffi.org>
parents:
1934
diff
changeset
|
467 data['message'] = {'':res[0].decode('utf-8')} # FIXME: Q&D fix for message refactoring, message is now a dict |
|
2132
c0577837680a
core: replaced SkipHistory exception by a key in mess_data:
Goffi <goffi@goffi.org>
parents:
2129
diff
changeset
|
468 try: |
|
c0577837680a
core: replaced SkipHistory exception by a key in mess_data:
Goffi <goffi@goffi.org>
parents:
2129
diff
changeset
|
469 # we want to keep message in history, even if no store is requested in message hints |
|
2138
6e509ee853a8
plugin OTR, core; use of new sendMessage + OTR mini refactoring:
Goffi <goffi@goffi.org>
parents:
2132
diff
changeset
|
470 del data[u'history'] |
|
2132
c0577837680a
core: replaced SkipHistory exception by a key in mess_data:
Goffi <goffi@goffi.org>
parents:
2129
diff
changeset
|
471 except KeyError: |
|
c0577837680a
core: replaced SkipHistory exception by a key in mess_data:
Goffi <goffi@goffi.org>
parents:
2129
diff
changeset
|
472 pass |
| 2128 | 473 # TODO: add skip history as an option, but by default we don't skip it |
|
2132
c0577837680a
core: replaced SkipHistory exception by a key in mess_data:
Goffi <goffi@goffi.org>
parents:
2129
diff
changeset
|
474 # data[u'history'] = C.HISTORY_SKIP # we send the decrypted message to frontends, but we don't want it in history |
| 1055 | 475 else: |
| 2128 | 476 log.warning(u"An encrypted message was expected, but got {}".format(data['message'])) |
|
1963
a2bc5089c2eb
backend, frontends: message refactoring (huge commit):
Goffi <goffi@goffi.org>
parents:
1955
diff
changeset
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477 raise failure.Failure(exceptions.CancelError('Cancelled by OTR')) # no message at all (no history, no signal) |
| 2128 | 478 return data |
| 1055 | 479 |
| 2128 | 480 def _receivedTreatmentForSkippedProfiles(self, data): |
|
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481 """This profile must be skipped because the frontend manages OTR itself, |
| 2128 | 482 |
| 483 but we still need to check if the message must be stored in history or not | |
| 484 """ | |
| 485 # XXX: FIXME: this should not be done on a per-profile basis, but per-message | |
|
1955
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486 try: |
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487 message = data['message'].itervalues().next().encode('utf-8') # FIXME: Q&D fix for message refactoring, message is now a dict |
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488 except StopIteration: |
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489 return data |
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490 if message.startswith(potr.proto.OTRTAG): |
|
2132
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491 # FIXME: it may be better to cancel the message and send it direclty to bridge |
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492 # this is used by Libervia, but this may send garbage message to other frontends |
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493 # if they are used at the same time as Libervia. |
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494 # Hard to avoid with decryption on Libervia though. |
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495 data[u'history'] = C.HISTORY_SKIP |
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496 return data |
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497 |
|
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498 def MessageReceivedTrigger(self, client, message_elt, post_treat): |
| 2128 | 499 if message_elt.getAttribute('type') == C.MESS_TYPE_GROUPCHAT: |
| 500 # OTR is not possible in group chats | |
| 501 return True | |
| 502 if client.profile in self.skipped_profiles: | |
| 503 post_treat.addCallback(self._receivedTreatmentForSkippedProfiles) | |
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504 else: |
| 2128 | 505 post_treat.addCallback(self._receivedTreatment, client) |
| 1055 | 506 return True |
| 507 | |
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508 def _sendMessageFinishTrigger(self, client, mess_data): |
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509 if not 'OTR' in mess_data: |
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510 return |
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511 otrctx = mess_data['OTR'] |
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512 message_elt = mess_data['xml'] |
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513 to_jid = mess_data['to'] |
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514 if otrctx.state == potr.context.STATE_ENCRYPTED: |
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515 log.debug(u"encrypting message") |
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516 body = None |
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517 for child in list(message_elt.children): |
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518 if child.name == 'body': |
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519 # we remove all unencrypted body, |
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520 # and will only encrypt the first one |
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521 if body is None: |
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522 body = child |
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523 message_elt.children.remove(child) |
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524 elif child.name == 'html': |
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525 # we don't want any XHTML-IM element |
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526 message_elt.children.remove(child) |
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527 if body is None: |
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528 log.warning(u"No message found") |
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529 else: |
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530 self._p_carbons.setPrivate(message_elt) |
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531 otrctx.sendMessage(0, unicode(body).encode('utf-8'), appdata=mess_data) |
| 1055 | 532 else: |
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533 feedback = D_(u"Your message was not sent because your correspondent closed the encrypted conversation on his/her side. " |
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534 u"Either close your own side, or refresh the session.") |
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535 client.feedback(to_jid.full(), feedback) |
| 2128 | 536 |
| 537 def messageSendTrigger(self, client, mess_data, pre_xml_treatments, post_xml_treatments): | |
| 538 if mess_data['type'] == 'groupchat': | |
| 1055 | 539 return True |
| 2128 | 540 if client.profile in self.skipped_profiles: # FIXME: should not be done on a per-profile basis |
| 541 return True | |
|
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changeset
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542 to_jid = copy.copy(mess_data['to']) |
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parents:
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changeset
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543 if not to_jid.resource: |
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diff
changeset
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544 to_jid.resource = self.host.memory.getMainResource(client, to_jid) # FIXME: full jid may not be known |
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changeset
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545 otrctx = client._otr_context_manager.getContextForUser(to_jid) |
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546 if otrctx.state != potr.context.STATE_PLAINTEXT: |
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547 self._p_hints.addHint(mess_data, self._p_hints.HINT_NO_COPY) |
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changeset
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548 self._p_hints.addHint(mess_data, self._p_hints.HINT_NO_PERMANENT_STORE) |
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changeset
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549 mess_data['OTR'] = otrctx # this indicate that encryption is needed in sendMessageFinish trigger |
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changeset
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550 if not mess_data['to'].resource: # if not resource was given, we force it here |
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551 mess_data['to'] = to_jid |
| 2128 | 552 return True |
| 1055 | 553 |
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changeset
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554 def _presenceReceivedTrigger(self, entity, show, priority, statuses, profile): |
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555 if show != C.PRESENCE_UNAVAILABLE: |
|
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3be9d8ab2e15
plugin sec_otr: a trigger was not returning True
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diff
changeset
|
556 return True |
| 2128 | 557 client = self.host.getClient(profile) |
|
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plugin OTR: forces FINISHED state if we are in ENCRYPTED state on contact disconnection
souliane <souliane@mailoo.org>
parents:
1169
diff
changeset
|
558 if not entity.resource: |
|
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plugin sec_otr: fixes bad handling of entity disconnection
souliane <souliane@mailoo.org>
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diff
changeset
|
559 try: |
|
1970
200cd707a46d
plugin XEP-0045, quick_frontend + primitivus (chat): cleaning of XEP-0045 (first pass):
Goffi <goffi@goffi.org>
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1963
diff
changeset
|
560 entity.resource = self.host.memory.getMainResource(client, entity) # FIXME: temporary and unsecure, must be changed when frontends are refactored |
|
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souliane <souliane@mailoo.org>
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1480
diff
changeset
|
561 except exceptions.UnknownEntityError: |
|
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plugin sec_otr: fixes bad handling of entity disconnection
souliane <souliane@mailoo.org>
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1480
diff
changeset
|
562 return True # entity was not connected |
| 2128 | 563 if entity in client._otr_context_manager.contexts: |
| 564 otrctx = client._otr_context_manager.getContextForUser(entity) | |
|
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changeset
|
565 otrctx.disconnect() |
|
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1169
diff
changeset
|
566 return True |